Post Reply 
HP 35s screen flickers
03-29-2018, 04:58 PM
Post: #1
HP 35s screen flickers
Hello HP/RPN fans !!
Please excuse me as I am here for the first time and might be posting at the wrong section or asking something that has already been discussed.
I am using the 35s for about 8 years, recently find that the display brightness is flickering at a constant pace. I dont see it if viewed perpendicular to the screen, but if viewed at about 45 degrees, it is more pronounced. I even tried replacing battery, putting in the best Made in Japan one but no improvement.
Thanking you in advance.
Find all posts by this user
Quote this message in a reply
03-30-2018, 03:04 AM
Post: #2
RE: HP 35s screen flickers
Did you try a fresh set of batteries?
Find all posts by this user
Quote this message in a reply
03-30-2018, 07:04 AM (This post was last modified: 03-30-2018 07:05 AM by AndiGer.)
Post: #3
RE: HP 35s screen flickers
Yes he did ...
(03-29-2018 04:58 PM)Ask Mait Wrote:  I even tried replacing battery, putting in the best Made in Japan one but no improvement.
Find all posts by this user
Quote this message in a reply
03-30-2018, 08:35 AM
Post: #4
RE: HP 35s screen flickers
Do you get the flickering when viewing in daylight? I’m wondering if it’s a strobe effect due to high speed flicker from artificial lighting.

Nigel (UK)
Find all posts by this user
Quote this message in a reply
03-30-2018, 04:49 PM
Post: #5
RE: HP 35s screen flickers
Have you upped your consumption of coffee lately? I am sensitive to flicker (that guy at the office who increased everyone's CRT refresh rate) and I notice it more when dosed with extra caffeine.
Find all posts by this user
Quote this message in a reply
03-31-2018, 08:57 AM
Post: #6
RE: HP 35s screen flickers
I had a cheap Casio watch which, in strong sunlight, could be seen to flicker at about 8Hz (estimated).
Find all posts by this user
Quote this message in a reply
03-31-2018, 02:27 PM
Post: #7
RE: HP 35s screen flickers
(03-30-2018 08:35 AM)Nigel (UK) Wrote:  Do you get the flickering when viewing in daylight? I’m wondering if it’s a strobe effect due to high speed flicker from artificial lighting.

Nigel (UK)

Problem Solved !! and Nigel you are a genius.
Took the calc near a window and lo..the problem is solved. The display was as steady as it could be. I work in a dark room and use a desk lamp for illumination. Recently I changed the bulb from incandescent to fluorescent and seems that since then this issue started.
Brought the calc back under the same lamp and flickering resumes :-)
Believing that its dying..I just bought a 50g in panic from ebay..money wasted :-(
Thank you everyone for your thoughts.
Mait
Find all posts by this user
Quote this message in a reply
03-31-2018, 02:43 PM
Post: #8
RE: HP 35s screen flickers
(03-30-2018 04:49 PM)everettr Wrote:  Have you upped your consumption of coffee lately? I am sensitive to flicker (that guy at the office who increased everyone's CRT refresh rate) and I notice it more when dosed with extra caffeine.

It happens with me with increased dose of C2H5(OH)
Thanks
Find all posts by this user
Quote this message in a reply
03-31-2018, 02:45 PM
Post: #9
RE: HP 35s screen flickers
(03-31-2018 08:57 AM)EdS2 Wrote:  I had a cheap Casio watch which, in strong sunlight, could be seen to flicker at about 8Hz (estimated).

Yes, I understand now that it has got something to do with the surrounding light than the device itself.
Thanks
Find all posts by this user
Quote this message in a reply
03-31-2018, 03:24 PM
Post: #10
RE: HP 35s screen flickers
(03-31-2018 02:27 PM)Ask Mait Wrote:  Believing that its dying..I just bought a 50g in panic from ebay..money wasted :-(

Money spent on a 50g is not money wasted! Use the 50g for a while and you'll start thinking that the money spent on your 35S was wasted Smile

I currently own three 50g's and I had to think for quite a while before deciding that snapping up a fourth one that appeared on TAS yesterday wouldn't be reasonable...
Find all posts by this user
Quote this message in a reply
03-31-2018, 03:39 PM
Post: #11
RE: HP 35s screen flickers
(03-31-2018 03:24 PM)grsbanks Wrote:  
(03-31-2018 02:27 PM)Ask Mait Wrote:  Believing that its dying..I just bought a 50g in panic from ebay..money wasted :-(

Money spent on a 50g is not money wasted! Use the 50g for a while and you'll start thinking that the money spent on your 35S was wasted Smile

I currently own three 50g's and I had to think for quite a while before deciding that snapping up a fourth one that appeared on TAS yesterday wouldn't be reasonable...

Hope what you said is true..but I am looking at myself ..@50 years of age who wants to go over the steep learning curve
Find all posts by this user
Quote this message in a reply
03-31-2018, 03:48 PM
Post: #12
RE: HP 35s screen flickers
(03-31-2018 03:39 PM)Ask Mait Wrote:  Hope what you said is true..but I am looking at myself ..@50 years of age who wants to go over the steep learning curve

It's steep to start with but then it gets easier as the logic behind RPL sinks in.

Put it this way, I'm 50 years old too and I bought my first 50g maybe 18 months ago. I'd already owned a 28S and a 48GX before then so I already had a head start with RPL but still knew nothing of the 50g's specifics. Since then I've also dabbled in SysRPL and Saturn ASM (the 50g has the wherewithal to assemble source code built in). It's a lot of fun, really.
Find all posts by this user
Quote this message in a reply
03-31-2018, 05:28 PM
Post: #13
RE: HP 35s screen flickers
Delighted that your problem is solved! I like the 35s a lot.

However, I like the HP-50g even more. Assuming that you're used to RPN from the 35s you should be in for a lot of fun.

Nigel (UK)
Find all posts by this user
Quote this message in a reply
03-31-2018, 08:06 PM
Post: #14
RE: HP 35s screen flickers
Thank you Grsbanks and Nigel for your encouragement, I will try learning the 50g..will see how it goes.
Thanks
Find all posts by this user
Quote this message in a reply
03-31-2018, 08:11 PM
Post: #15
RE: HP 35s screen flickers
(03-31-2018 08:06 PM)Ask Mait Wrote:  Thank you Grsbanks and Nigel for your encouragement, I will try learning the 50g..will see how it goes.
Thanks

Good luck! I think you'll find the 50g offers some very nice functionality, and if you are at all interested in programming, there's a tremendous amount of resources available to you in that regard.

If nothing else, just hang on to the 50g for a while. The value will probably go up since it is no longer in production. You could always sell it later at a profit.
Find all posts by this user
Quote this message in a reply
04-01-2018, 12:06 AM
Post: #16
RE: HP 35s screen flickers
(03-31-2018 08:11 PM)DavidM Wrote:  
(03-31-2018 08:06 PM)Ask Mait Wrote:  Thank you Grsbanks and Nigel for your encouragement, I will try learning the 50g..will see how it goes.
Thanks

Good luck! I think you'll find the 50g offers some very nice functionality, and if you are at all interested in programming, there's a tremendous amount of resources available to you in that regard.

If nothing else, just hang on to the 50g for a while. The value will probably go up since it is no longer in production. You could always sell it later at a profit.

Thanks David, your words make sense.
Find all posts by this user
Quote this message in a reply
Post Reply 




User(s) browsing this thread: 1 Guest(s)